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SJ63 AJ+, SJ63 AJ 229043AAA
Electrical System - CE & AS Section 4 – Troubleshooting Information
4. Loose or broken wire #28 in cable B or its
connectors.
Check for continuity between pins #7 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
5. Loose or broken wire #28 from plug B pin #7 to
platform terminal block.
Check continuity. Replace if defective.
6. Loose or broken wire #28 from platform terminal
block to valve driver pin #32.
Check continuity. Replace if defective.
4.3-56 No Left Steer
1. Loose or broken wire #24 from drive joystick A2
to valve driver pin #17.
Check continuity. Replace if defective.
2. Loose or broken wire #24A from valve driver pin
#4 to plug A pin #10 in platform control console.
Check continuity. Replace if defective.
3. Loose or broken wire #24A in boom cable A or
its connectors.
Check for continuity between pins #10 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
4. Loose or broken wire #24A from base plug A pin
#10 to main harness plug pin #5.
Check continuity. Replace if defective.
5. Loose or broken wire #24A or #02 from main
harness plug to left steer valve 5H-24A.
Check continuity. Replace if defective.
6. Defective left steer valve coil 5H-24A. Check continuity and resistance through coil.
Replace if defective.
4.3-57 No Right Steer
1. Loose or broken wire #23 from drive joystick A2
to valve driver pin #18.
Check continuity. Replace if defective.
2. Loose or broken wire #23A from valve driver pin
#21 to plug A pin #9 in platform control console.
Check continuity. Replace if defective.
3. Loose or broken wire #23A in boom cable A or
its connectors.
Check for continuity between pins #9 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
4. Loose or broken wire #23A from base plug A pin
#9 to main harness plug pin #4.
Check continuity. Replace if defective.
5. Loose or broken wire #23A or #02 from main
harness plug to right steer valve 5H-23A.
Check continuity. Replace if defective.
6. Defective right steer valve coil 5H-23A. Check continuity and resistance through coil.
Replace if defective.
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